working on win32 uwp! and libremidi update

include/libremidi/api.hpp

@@ -1,6 +1,8 @@
 #pragma once
+#include <libremidi/api-c.h>
 #include <libremidi/config.hpp>
 
+#include <any>
 #include <string_view>
 #include <vector>
 
@@ -9,28 +11,7 @@ namespace libremidi
 //! MIDI API specifier arguments.
 //! To get information on which feature is supported by each back-end, check their backend file
 //! in e.g. backends/winmm.hpp, etc.
-enum class API
-{
-  UNSPECIFIED, /*!< Search for a working compiled API. */
-
-  // MIDI 1.0 APIs
-  COREMIDI,    /*!< macOS CoreMidi API. */
-  ALSA_SEQ,    /*!< Linux ALSA Sequencer API. */
-  ALSA_RAW,    /*!< Linux Raw ALSA API. */
-  JACK_MIDI,   /*!< JACK Low-Latency MIDI Server API. */
-  WINDOWS_MM,  /*!< Microsoft Multimedia MIDI API. */
-  WINDOWS_UWP, /*!< Microsoft WinRT MIDI API. */
-  WEBMIDI,     /*!< Web MIDI API through Emscripten */
-  PIPEWIRE,    /*!< PipeWire */
-
-  // MIDI 2.0 APIs
-  ALSA_RAW_UMP,          /*!< Raw ALSA API for MIDI 2.0 */
-  ALSA_SEQ_UMP,          /*!< Linux ALSA Sequencer API for MIDI 2.0 */
-  COREMIDI_UMP,          /*!< macOS CoreMidi API for MIDI 2.0. Requires macOS 11+ */
-  WINDOWS_MIDI_SERVICES, /*!< Windows API for MIDI 2.0. Requires Windows 11 */
-
-  DUMMY /*!< A compilable but non-functional API. */
-};
+using API = libremidi_api;
 
 /**
  * \brief A function to determine the available compiled MIDI 1.0 APIs.
@@ -50,6 +31,9 @@ LIBREMIDI_EXPORT std::vector<libremidi::API> available_apis() noexcept;
 */
 LIBREMIDI_EXPORT std::vector<libremidi::API> available_ump_apis() noexcept;
 
+LIBREMIDI_EXPORT
+libremidi::API midi_api(const std::any& conf);
+
 //! A static function to determine the current version.
 LIBREMIDI_EXPORT std::string_view get_version() noexcept;
 
@@ -60,6 +44,17 @@ LIBREMIDI_EXPORT std::string_view get_api_display_name(libremidi::API api);
 //! Look-up an API through its name
 LIBREMIDI_EXPORT libremidi::API get_compiled_api_by_name(std::string_view api);
 
+inline constexpr bool is_midi1(libremidi::API api)
+{
+  return (static_cast<int>(api) >= 0x1 && static_cast<int>(api) < 0x1000)
+         || api == libremidi::API::DUMMY;
+}
+
+inline constexpr bool is_midi2(libremidi::API api)
+{
+  return static_cast<int>(api) >= 0x1000;
+}
+
 namespace midi1
 {
 //! Returns the default MIDI 1.0 backend to use for the target OS.